I get the name of an input element, which is a string with a number (url1). I want to increment the number by 1 (url2) in the easiest and quickest way possible.

My way would be to get d / restofstring, ++ the match, then put together number with restofstring. Is there a better way?

Update:

My final (dummy)code became:

var liNew = document.createElement('li'); 

liNew.innerHTML = liOld.innerHTML; 

var els = Y.Dom.getChildrenBy(liNew, function(el) { 

    return el.name.match(/d+$/); 

} // YUI method where the function is a test 

for (var i = 0, el; el = els[i]; i++) { 

    el.name = el.name.replace(/d+$/, function(n) { return ++n }); 

} 

list.appendChild(liNew);